HelenOS sources

DP_CURR           331 uspace/drv/nic/ne2k/dp8390.c 	pio_write_8(ne2k->port + DP_CURR, ne2k->start_page + 1);
DP_CURR           490 uspace/drv/nic/ne2k/dp8390.c 		uint8_t current = pio_read_8(ne2k->port + DP_CURR);